The Guggenheim Museum in Bilbao is a museum of images. Not because it houses paintings. It does that too, to a modest extent. But rather because, as a building, it provides an abundance of images. It makes images available less by means of its function as a museum than through its shell. This potential is an invitation to explore the images of the shell, to “paint” them. In this way the Guggenheim Bilbao is a source for peinture trouvée.